The OM642 is a tractable, effortless and flexible powerplant at urban speeds, with minimal inertia and almost nothing of what you'd call turbo lag.

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Rasputin could fix church jobs, too: a word from him was enough to have a troublesome bishop dispatched to Siberia, or a tractable one promoted to Metropolitan.

ECONOMIST: Russian history

One way to cut through the complexity is to look at a relatively small and tractable subset of the larger problem.

FORBES: An Organization Design Renaissance